Oppo PM-3 vs Shure SRH1540: 20 facts in comparison

1. highest frequency

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.

50000Hz

Sony MDR-Z1R: 120000Hz

25000Hz

2. lowest frequency

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.

10Hz

Sony MH1CBLK: 1Hz

5Hz

3. has sound isolation/passive noise reduction

The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.

Oppo PM-3

Shure SRH1540

44% have it

4. weight

34g lighter.

320g

Sony MDR-EX150AP: 3g

286g

5. impedance

Impedance is the device’s electrical resistance to the current being pushed through it. The lower the impedance, the easier it is to get higher volume and requires less power.

26 Ohms

Flips Solo 2 Social: 4 Ohms

46 Ohms

6. has a neodymium magnet

Devices with neodymium magnets are lighter and more powerful than those which use ferrite magnets. They also have more bass and clear high notes.

Oppo PM-3

Shure SRH1540

36% have it

7. sound pressure level

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.

102dB/mW

AKG K553 Pro: 144dB/mW

99dB/mW

8. has a detachable cable

With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.

Oppo PM-3

Shure SRH1540

39% have it

9. has stereo speakers

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.

Oppo PM-3

Shure SRH1540

76% have it

10. can be used as a headset

A headset is one headphone or pair with a built-in microphone. Headsets can be used for applications which require communication i.e. Skype, games with voice chat, mobile phones etc.

Oppo PM-3

Shure SRH1540

47% have it

11. can be folded

Folding devices are good for transporting as they take up less space in your bag.

Oppo PM-3

Shure SRH1540

31% have it

12. has an in-line control panel

There is a control panel on the cable, so you can easily operate the device without having to interact with it.

Oppo PM-3

Shure SRH1540

47% have it

13. has an over-the-ear form

Comfortable full-size form with earcups that fully enclose your ears. This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. It offers potential for maximum bass and loudness levels.